Who ranks #1 on the Acebench leaderboard?
As of August 20, 2026, Kimi K2-Instruct-0905 by Moonshot AI ranks #1 on Acebench at 76.5%. API pricing is $0.60/M input and $2.50/M output.
As of August 20, 2026, Kimi K2-Instruct-0905 is #1 for Acebench at 76.5%. Ranked by the Acebench score 2 models in this index have a published Acebench score. Acebench leaderboard: rank models by Acebench next to live API token prices.
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As of August 20, 2026, Kimi K2-Instruct-0905 by Moonshot AI is #1 for Acebench at 76.5%. Ranked by the Acebench score This board also tracks Acebench. Next on the same board: Kimi K2 Instruct. This acebench leaderboard ranks models by Acebench. Scores come from public evals. Prices are the live API rates in the table above.
Sources: OpenAI API pricing (https://developers.openai.com/api/docs/pricing); Anthropic Claude API pricing (https://platform.claude.com/docs/en/about-claude/pricing); Gemini API pricing (https://ai.google.dev/gemini-api/docs/pricing)
| Rank | Model | Acebench | Input /M | Output /M |
|---|---|---|---|---|
| 1 | Kimi K2-Instruct-0905 | 76.5% | $0.60 | $2.50 |
| 2 | Kimi K2 Instruct | 76.5% | $0.50 | $0.50 |
Rank one eval at a time. All LLM benchmarks.
As of August 20, 2026, Kimi K2-Instruct-0905 by Moonshot AI ranks #1 on Acebench at 76.5%. API pricing is $0.60/M input and $2.50/M output.
The current Acebench ranking as of August 20, 2026 is 1. Kimi K2-Instruct-0905 at 76.5%; 2. Kimi K2 Instruct at 76.5%.
Kimi K2 Instruct is the cheapest scored model on this acebench leaderboard at $0.50/M input and $0.50/M output ($1.00 blended). Kimi K2-Instruct-0905 still leads Acebench at 76.5%.
Not automatically. Kimi K2-Instruct-0905 leads Acebench, but a cheaper scored model can be the better production choice if the quality gap is small. Use the table to weigh Acebench against input/output price, context window, and related evals.
Scores and API prices on this page are refreshed from published evals and provider rates. The snapshot is labeled August 20, 2026. Treat it as a current index, not a one-off blog post.
Acebench is a public LLM eval (the Acebench score). This page ranks models that have published a score, next to live API prices.
This page is the Acebench leaderboard. Models are sorted by Acebench, with input and output token prices on the same row so you can weigh score against cost. Official boards often omit price; that comparison is the point of this index.
Official eval pages own the methodology. This page keeps the published Acebench score next to live API $/M so you can pick a production SKU, not only a trophy number.